DXVADDI_FREQUENCY structure (d3dumddi.h)
The DXVADDI_FREQUENCY structure describes the video frame rate in Hertz (Hz). For example, NTSC TV is 60000 over 1001.
Syntax
typedef struct _DXVADDI_FREQUENCY {
[in] UINT Numerator;
[in] UINT Denominator;
} DXVADDI_FREQUENCY;
Members
[in] Numerator
The numerator of the frequency fraction.
[in] Denominator
The denominator of the frequency fraction.
Remarks
The user-mode display driver must interpret the video frame rate for the following special cases as indicated:
- Numerator/Denominator = 0/0 is interpreted as an unknown frequency.
- Numerator/Denominator = n/0, where n is any number, is interpreted as invalid.
- Numerator/Denominator = 0/n is interpreted as zero frequency.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Available in Windows Vista and later versions of the Windows operating systems. |
| Header | d3dumddi.h (include D3dumddi.h) |